ALSA: hda: Use waitqueue for RIRB in HDA-core helper, too

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This patch implements the same logic that was done for the legacy
HD-audio controller driver by the commit 88452da92b ("ALSA: hda: Use
standard waitqueue for RIRB wakeup") to the HDA-core helper code,
too.  This makes snd_hdac_bus_get_response() waiting for the response
with bus->rirb_wq instead of polling when bus->polling is false.
It'll save both CPU time and response latency.

Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20191212191101.19517-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Takashi Iwai 2019-12-12 20:11:00 +01:00

parent 341a79ee8b

commit 89698ed5cc

1 changed files with 14 additions and 2 deletions

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sound/hda/hdac_controller.c

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